When I was in my post graduation, one day a person from Abbot Industries came to present guest lecture. It is well known fact that students hate such kind of lectures. I was not at all interested to attend that class but with force of my teachers I went into class. He asked us, how many of you know TED.com? no one raised their hands. Then he explained bout it, he said not to waste time in facebook, instead spend your time at TED.com. In evening I started watching ted, I loved it. Now I have all collection of TED.